BS L 154-1977 Specification for ingots and castings of aluminium-copper-silicon alloy (solution treated and aged at room temperature) (Cu 4 Si 1)《铝-铜(4)-硅(1)合金铸锭和铸件规范(溶液处理.pdf

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1、BRITISH STANDARD AEROSPACE SERIES BS L 154: 1977 Incorporating Amendment Nos. 1 and 2 Specification for Ingots and castings of aluminium-copper- silicon alloy (Solution treated and aged at room temperature) (Cu 4, Si 1) UDC 629.7:669.7153782 14 153.71 157.83 975BS L 154:1977 This British Standard, h

2、aving been prepared under the directionof the Aerospace Standards Committee, was published under the authority ofthe Executive Board on 31January1977 BSI 01-2000 The following BSI references relate to the work on this standard: Committee reference ACE/27 Draft for comment 76/70247 DC ISBN 0 580 0997

3、0 9 A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document compri

4、ses a front cover, an inside front cover, pagesiandii, page1and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No. Date of is

5、sue Comments 3737 September 1981 6546 April 1991 Indicated by a sideline in the marginBS L 154:1977 BSI 01-2000 i Contents Page 1 Inspection and testing procedure 1 2 Chemical composition 1 3 Heat treatment 1 4 Mechanical properties 1 5 Grain size 1ii blankBS L 154:1977 BSI 01-2000 1 NOTEIngots and

6、castings of this composition but solution treated and artificially aged are covered by BSL155. 1 Inspection and testing procedure This British Standard shall be used in conjunction with the relevant sections of the latest issue of BSL101 as follows. 2 Chemical composition 2.1 The chemical compositio

7、n of the ingots and castings shall be: 2.2 The ingots and castings shall be grain refined with titanium or with titanium and boron. The ingot maker shall declare the grain refining element(s) used. 3 Heat treatment 3.1 The castings and test samples shall be heat treated together as follows: a) solut

8、ion treat at a temperature of510 5 C for not less than16h; b) quench into water at a temperature of50 C to70 C or in a polymer quenchant at a temperature not greater than30 C; NOTEThe use of polymer quenchant as an alternative to water should be agreed by the purchaser. c) cool in air. 3.2 Where a p

9、olymer quenchant has been used in3.1 b), the nature of the quenchant shall be defined on the certificate of conformity for the castings. 4 Mechanical properties 4.1 Tensile test NOTEThe tensile test values specified for test pieces machined from separately cast test samples may not be realized in ce

10、rtain portions of castings. The mechanical properties obtained from separately cast test samples, selected and prepared in accordance with the relevant requirements of BSL101, shall be not less than the following values. NOTEInformation on SI units is given in BS3763 “The International System of uni

11、ts (SI)” and BS350 “Conversion factors and tables”. 4.2 Hardness test. The hardness of castings heat treated with unrelated test samples, in accordance with clause3, shall be not less than the following values: NOTEThe specified value may not be achieved until after30days at room temperature. 5 Grai

12、n size The grain size of the castings shall be as uniform as possible and preferably not greater than0.20mm. Ingots sections 1 and 2 Castings not subject to cut-up testing sections 1 and 3 Castings subject to cut-up testing sections 1 and 4 Element % min. max. Silicon 1.0 1.5 Iron 0.25 Copper 3.8 4.

13、5 Manganese 0.1 Magnesium 0.10 Nickel 0.1 Zinc 0.1 Titanium 0.05 0.25 Lead 0.05 Tin 0.05 Others each 0.05 Others total 0.15 Aluminium Remainder Test sample 0.2 % proof stress a Tensile strength Elongation MPa (= N/mm 2 ) MPa (= N/mm 2 ) % Sand cast 160 215 7 Chill cast 165 265 13 a The specified val

14、ue may not be achieved until after 30 days at room temperature. Sand cast 70 HB Chill cast 80 HBBS L 154: 1977 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on standards

15、 in Europe and at the international level. It is incorporated by Royal Charter. Revisions BritishStandards are updated by amendment or revision. Users of BritishStandards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our

16、 products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this BritishStandard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel:02089969000. Fax:02089967400. BSI offers mem

17、bers an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards. Buying standards Orders for all BSI, international and foreign standards publications should be addressed to Customer Services. Tel:02089969001. Fax:02089967001. In

18、response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been published as BritishStandards, unless otherwise requested. Information on standards BSI provides a wide range of information on national, European and international standards thr

19、ough its Library and its Technical Help to Exporters Service. Various BSI electronic information services are also available which give details on all its products and services. Contact the Information Centre. Tel:02089967111. Fax:02089967048. Subscribing members of BSI are kept up to date with stan

20、dards developments and receive substantial discounts on the purchase price of standards. For details of these and other benefits contact Membership Administration. Tel:02089967002. Fax:02089967001. Copyright Copyright subsists in all BSI publications. BSI also holds the copyright, in the UK, of the

21、publications of the international standardization bodies. Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means electronic, photocopying, recording or otherwise without prior written

22、 permission from BSI. This does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. If permission is granted, the terms may include royalty payments or a licensing agreement. Details and advice can be obtained from the Copyright Manager. Tel:02089967070.

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